Ingredient review
Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate
INCI: BIS-ISOSTEARYL DIMER DILINOLEYL DIMER DILINOLEATE
A gentle, plant-derived emollient that softens skin and improves product feel without clogging pores or causing irritation.
In plain English
This ingredient is a type of ester made from fatty acids found in plants. In skincare, it works as an emollient, meaning it helps soften and smooth the skin by forming a light, non-greasy film that reduces water loss. It also improves the texture of creams and lotions, making them feel silky and spread easily. Because it's large in molecular size, it stays on the skin's surface and is unlikely to clog pores or cause breakouts.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A semi-synthetic ester derived from isostearyl alcohol and dimer dilinoleic acid, which are sourced from plant oils like sunflower or castor. It is a large molecule that acts as a skin-conditioning agent and texture enhancer.
How it works
It sits on the skin's surface, forming a thin, breathable film that locks in moisture and reduces transepidermal water loss (TEWL). This helps keep skin hydrated and supple. Its large molecular structure means it doesn't penetrate deeply, making it very gentle and non-comedogenic.
Pros
Gentle on skin
Large molecular size means it stays on the surface, making it unlikely to irritate or clog pores.
Improves product feel
Gives creams and lotions a silky, smooth texture that spreads easily and feels luxurious.
Cons and cautions
May feel heavy for oily skin
Some users with very oily skin might find it too rich or occlusive, especially in high concentrations.
Limited research
While safe, there are fewer peer-reviewed studies on this specific ester compared to more common emollients.
Best for
- People with dry or normal skin looking for gentle moisture
- Those who prefer non-comedogenic emollients
Use caution if
- Individuals with very oily or acne-prone skin who prefer lightweight, gel-based products
Usage tips
Safety summary
Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel and EU CosIng support its use as a non-irritating emollient. However, specific efficacy studies are limited.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics by the FDA and EU CosIng database as a safe skin-conditioning agent.
- Common uses
- Moisturizers, Lip products, Foundations, Sunscreens, Anti-aging creams
- Environmental note
- Derived from plant oils, it is biodegradable and considered more sustainable than some petroleum-based emollients.
Good to know
- Often used in lipsticks and foundations for a smooth application
- Considered a 'green' ingredient as it's derived from renewable plant sources
Common questions
What is Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate in beauty products?
This ingredient is a type of ester made from fatty acids found in plants. In skincare, it works as an emollient, meaning it helps soften and smooth the skin by forming a light, non-greasy film that reduces water loss. It also improves the texture of creams and lotions, making them feel silky and spread easily. Because it's large in molecular size, it stays on the skin's surface and is unlikely to clog pores or cause breakouts.
What does Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate do in a beauty product?
It sits on the skin's surface, forming a thin, breathable film that locks in moisture and reduces transepidermal water loss (TEWL). This helps keep skin hydrated and supple. Its large molecular structure means it doesn't penetrate deeply, making it very gentle and non-comedogenic.
Is Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate safe for most people?
Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate is considered safe for cosmetic use with low irritation and comedogenic potential. It is well-tolerated by most skin types.
Who should be careful with Bis-Isostearyl Dimer Dilinoleyl Dimer Dilinoleate?
Individuals with very oily or acne-prone skin who prefer lightweight, gel-based products
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.